[Openstack-stable-maint] Stable check of openstack/oslo.limit for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/344457a759c24d9ca29a73dd45451a... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/03acc45ff42c44a6b199b10a56e759b4 : SUCCESS in 4m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5ea1fbaa7b3648479a2ed2c257eb72bf : SUCCESS in 3m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ca892d5deb054b7da27500a72bfaf1e5 : SUCCESS in 4m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/891f9b910e3849e7991ca0a61911b4ec : FAILURE in 4m 02s